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144251227 = 343342019
BaseRepresentation
bin10001001100100…
…01100101011011
3101001102201111001
420212101211123
5243412014402
622151445431
73401054341
oct1046214533
9331381431
10144251227
117447609a
1240386877
1323b68373
141522d991
15c9e6187
hex899195b

144251227 has 4 divisors (see below), whose sum is σ = 144296680. Its totient is φ = 144205776.

The previous prime is 144251209. The next prime is 144251231. The reversal of 144251227 is 722152441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144251227 - 27 = 144251099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144251195 and 144251204.

It is not an unprimeable number, because it can be changed into a prime (144251257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17577 + ... + 24442.

It is an arithmetic number, because the mean of its divisors is an integer number (36074170).

Almost surely, 2144251227 is an apocalyptic number.

144251227 is a deficient number, since it is larger than the sum of its proper divisors (45453).

144251227 is an equidigital number, since it uses as much as digits as its factorization.

144251227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45452.

The product of its digits is 4480, while the sum is 28.

The square root of 144251227 is about 12010.4632300341. The cubic root of 144251227 is about 524.4529170269.

The spelling of 144251227 in words is "one hundred forty-four million, two hundred fifty-one thousand, two hundred twenty-seven".

Divisors: 1 3433 42019 144251227